Signal transmission and reception method for wireless communication andapparatus therefor

Abstract

A method by which a UE receives a signal in a wireless communication system, according to an embodiment, comprises: receiving downlink control information (DCI) via a physical downlink control channel (PDCCH); and on the basis of the DCI, receiving a repeated physical downlink shared channel (PDSCH) in a time domain, wherein on the basis that the PDSCH scheduled by the DCI exceeds a PDSCH bandwidth supported by the UE, the UE may alternately receive different portions of the PDSCH in respective repetitions of the PDSCH.

1 . A method performed by a user equipment (UE), the method comprising:
 receiving downlink control information (DCI) through a physical downlink control channel (PDCCH); and   receiving a physical downlink shared channel (PDSCH) that is repeated in a time domain based on the DCI,   wherein, based on the PDSCH scheduled by the DCI exceeding a PDSCH bandwidth supported by the UE, the UE alternately receives different portions of the PDSCH for each repetition of the PDSCH.   
     
     
         2 . The method of  claim 1 , wherein, from among a first type reduced capability (RedCap) UE supporting a same size bandwidth for the PDCCH and the PDSCH, and a second type RedCap UE supporting different size bandwidths, the UE is the second type RedCap UE. 
     
     
         3 . The method of  claim 1 , wherein the UE receives the PDSCH by changing a location of a baseband (BB) for each repetition of the PDSCH. 
     
     
         4 . The method of  claim 3 , wherein, for each repetition of the PDSCH, a radio frequency (RF) band is maintained the same. 
     
     
         5 . The method of  claim 1 , wherein the DCI includes information about a number of repetitions of the PDSCH. 
     
     
         6 . The method of  claim 5 , wherein the DCI is provided for each repetition of the PDSCH, and
 wherein information regarding a number of repetitions of the PDSCH is related to a number of remaining repetitions.   
     
     
         7 . The method of  claim 1 , wherein the PDSCH includes a first system information block (SIB). 
     
     
         8 . The method of  claim 1 , wherein a PDSCH bandwidth of the UE that can be received for each repetition of the PDSCH, is 5 MHz or less. 
     
     
         9 . The method of  claim 1 , wherein the PDCCH carrying the DCI is repeated multiple times in the time domain. 
     
     
         10 . (canceled) 
     
     
         11 . A device comprising:
 a memory configured to store instructions; and   a processor configured to perform operations by executing the instructions,   wherein the operations of the processor include:   receiving downlink control information (DCI) through a physical downlink control channel (PDCCH); and   receiving a physical downlink shared channel (PDSCH) that is repeated in a time domain based on the DCI, and   wherein, based on the PDSCH scheduled by the DCI exceeding a PDSCH bandwidth supported by the UE, the UE alternately receives different portions of the PDSCH for each repetition of the PDSCH.   
     
     
         12 . The device of  claim 11 , further comprising:
 a transceiver configured to transmit or receive a signal under control of the processor,   wherein the device is a user equipment (UE) operating in a wireless communication system.   
     
     
         13 . The device of  claim 11 , wherein the device is an application specific processor (ASIC) or digital signal processing device configured to control a user equipment (UE) operating in a wireless communication system. 
     
     
         14 . A method performed by a base station (BS), the method comprising:
 transmitting downlink control information (DCI) through a physical downlink control channel (PDCCH); and   transmitting a physical downlink shared channel (PDSCH) to a user equipment (UE) based on the DCI,   wherein the BS repeatedly transmits the PDSCH in a time domain based on that the UE receiving the PDSCH includes a reduced capability (RedCap) UE supporting different size bandwidths for the PDCCH and the PDSCH and that the PDSCH scheduled by the DCI exceeds a PDSCH bandwidth supported by the RedCap UE.   
     
     
         15 . (canceled)